Chapter 8: Other Treatments for Obesity Management

The research shows that bariatric surgery can help you lose a lot of weight at first and improve health problems related to obesity. But keeping the weight off and staying healthy long-term really depends on eating well, being active, and making good lifestyle choices. Non-medical weight loss programs can give you a structure to help you lose weight, but they don’t all work the same in the long run.

In the end, picking the best non-medical treatment for your obesity is a personal choice that should take into account your health, what you prefer and how committed you are to making lifestyle changes that last.

Surgical Treatments for Obesity

Metabolic and bariatric surgery is a group of procedures that really work for treating severe obesity and the diseases that come with it. These modern surgical techniques have gotten much better over the decades and are now some of the most studied treatments in medicine.

A big improvement has been the use of minimally invasive techniques, like laparoscopic and robotic surgery. These use small cuts, which means less pain, fewer problems, shorter hospital stays and quicker recovery for you.

There are several different kinds of bariatric surgery that doctors commonly perform, each with its own procedure, good points, and drawbacks.

1. Roux-en-Y Gastric Bypass (RYGB)

RYGB or just gastric bypass, is a common and effective surgery that’s been used for over 50 years to treat obesity and related conditions. Doctors have been refining the laparoscopic approach since 1993.

The surgery divides your stomach into a small upper pouch, about the size of an egg, and a larger bottom part that gets bypassed and isn’t used for storing or digesting food anymore.

The small intestine is also divided, and your new, smaller stomach pouch connects directly to it, letting food pass through. The section of small bowel that drains the bypassed larger stomach connects further down the small intestine, creating a Y-shaped connection in your bowel. This allows digestive juices to eventually mix with the food you eat.

RYGB works in several ways, including:

• Limiting how much food and calories you can take in because of the smaller stomach.
• Decreasing how many calories and nutrients get absorbed by bypassing part of the small intestine.
• Changing hormones and metabolism, which makes you less hungry and more satisfied after eating.

But RYGB is technically more complicated compared to procedures like sleeve gastrectomy or gastric banding and has a higher risk of vitamin and mineral deficiencies and can cause “dumping syndrome,” a feeling of sickness after eating or drinking, especially sugary foods.

2. Laparoscopic Sleeve Gastrectomy

Often called the “sleeve,” it involves removing about 80% of your stomach, leaving the rest as a narrow, banana-shaped pouch.

This is done by freeing the stomach from surrounding organs and using surgical staplers to remove most of it. This new, smaller stomach holds less food and liquid, which directly reduces the amount of calories you consume.

By removing the part of the stomach that makes most of the hunger hormone (ghrelin), this surgery affects your metabolism by decreasing hunger, making you feel fuller, and helping your body reach and maintain a healthy weight, as well as improving blood sugar control.

Because this operation is relatively simple, it’s safer, avoiding potential complications that can happen with surgery on the small intestine. Good things about sleeve gastrectomy include its technical simplicity and shorter surgery time, making it suitable for certain patients with high-risk medical conditions and potentially as a first step for people with severe obesity.

The fact that sleeve gastrectomy became more popular between 2011 and 2019 suggests that more people prefer this procedure because it’s both effective and relatively simple.

3. Adjustable Gastric Banding (AGB)

It involves placing a silicone device around the upper part of your stomach to limit how much food you can eat. This procedure has been available in the United States since 2001.

The device, made of silicone, is positioned and secured around the upper section of your stomach, creating a small pouch above the band. How full you feel after eating depends on the size of the opening between this small pouch and the rest of your stomach.

This size can be adjusted by injecting or removing fluid through a port placed under your skin. Food passes through your stomach normally, but the amount is limited by the smaller opening the band creates.

This procedure generally doesn’t work as well for type 2 diabetes and has a more modest impact on metabolism compared to other bariatric surgeries.

The big decrease in the use of gastric banding from 2011 to 2019 shows it’s becoming less popular, probably because it doesn’t work as well and has more complications compared to other options.

4. Biliopancreatic Diversion with Duodenal Switch (BPD/DS)

The process starts with creating a tube-shaped stomach pouch, similar to the sleeve gastrectomy. It’s also like the gastric bypass because a significant portion of the small intestine is bypassed.

After creating the sleeve-like stomach, the first part of the small intestine is separated from the stomach. A section of the small intestine is then brought up and connected to the outlet of your newly created stomach.

The smaller, banana-shaped stomach limits how much food you can eat. The food stream bypasses about 75% of the small intestine, the most extensive bypass among commonly performed procedures.

Because of this, if you have this procedure, you must take vitamin and mineral supplements afterward.

Good things about BPD/DS include excellent results for improving obesity, affecting bowel hormones to reduce hunger and increase fullness, and being the most effective procedure for treating type 2 diabetes.

But it has slightly higher complication rates than other bariatric procedures and carries the highest risk of malabsorption and vitamin/micronutrient deficiencies.

5. Single Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy (SADI-S)

It is a newer bariatric surgery procedure endorsed by the American Society for Metabolic and Bariatric Surgery. It’s similar to the BPD/DS but simpler and quicker to perform because it only involves one surgical bowel connection.

The operation starts with a sleeve gastrectomy, removing about 80% of your stomach. Then, the first part of the small intestine (the duodenum) is divided, and a loop of the intestine is measured several feet from its end and connected to your newly created stomach pouch.

After SADI-S, food travels through your smaller stomach and directly into the latter portion of the small intestine, bypassing a significant segment and causing food to mix with digestive juices further down the tract.

This allows for enough vitamin and mineral absorption while still promoting good weight loss.

As a relatively new procedure, ongoing research is essential to fully understand its long-term outcomes and safety.

Healthy Dietary Approaches for Weight Loss and Obesity Management

The basic principle of a successful weight loss diet is to create a calorie deficit, which means you consume fewer calories than your body uses. This calorie deficit should be achieved through balanced nutrition, making sure you get enough essential nutrients from fruits, vegetables, whole grains, lean protein sources, and healthy fats.

At the same time, it’s important to limit foods and beverages high in added sugars, sodium, saturated and trans fats, and cholesterol, as these can add excess calories and lead to health problems.

Various dietary patterns have been recommended for weight loss and obesity management, each with its own focus and potential benefits.

1. Low-Fat Diets

Focuses on reducing your overall intake of fat, typically to below 30% of your total daily calories. These diets emphasize lean protein sources, fruits, vegetables, and whole grains. But research hasn’t consistently shown that low-fat diets work better than other dietary approaches for achieving long-term weight loss. The emphasis may be better placed on the quality of fats you consume rather than just the total amount.

2. Low-Carbohydrate Diets

Involves limiting carbohydrate intake to varying degrees, often below 40% of total daily energy, with ketogenic diets restricting it to less than 10% or 20-50 grams per day. These diets typically increase your intake of protein and fat. The Atkins diet, a well-known low-carbohydrate, high-protein approach, has shown effectiveness for weight loss in the short to medium term. However, the long-term sustainability and potential for nutrient deficiencies with such restrictive diets remain a concern.

3. Mediterranean Diet

Inspired by the traditional eating patterns of countries bordering the Mediterranean Sea. These are rich in fruits, vegetables, whole grains, legumes, nuts, seeds, and olive oil, with moderate amounts of fish, poultry, and dairy. The intake of red meat and processed foods is limited. This dietary pattern has been consistently linked to both weight loss and improvements in heart and metabolic health.

4. DASH (Dietary Approaches to Stop Hypertension) Diet

Originally designed to lower blood pressure, DASH has also proven effective for weight loss. It emphasizes fruits, vegetables, whole grains, and low-fat dairy, while limiting saturated and total fat, cholesterol, and sodium. This makes it a particularly good option if you have obesity and high blood pressure or other heart risk factors.

5. Plant-Based Diets

Focuses on foods derived from plants, including fruits, vegetables, whole grains, legumes, nuts, and seeds. These diets, often high in fiber and nutrient-dense, have shown promise in promoting weight loss and improving blood sugar, cholesterol, and inflammation levels. However, careful planning is essential to ensure you get all the necessary nutrients.

Beyond the specific types of diets, the principles of portion control and mindful eating play a critical role in successful weight management. Being aware of how much you’re eating and not overdoing it is really important. Your body actually tells you when you’re hungry or full – paying attention to these signals can help control how much you eat. Mindful eating, which means eating slowly and really enjoying each bite without distractions like TV, can also help you manage your weight better.

Recommendations from trusted sources like the Dietary Guidelines for Americans and the American Heart Association give you a roadmap for healthy eating. These guidelines suggest making healthy eating a way of life instead of just following short-term diets.

The American Heart Association specifically says you should eat more fruits, veggies, and whole grains, choose healthier oils, pick lean proteins, check food labels, and make smarter food choices.

Role of Exercise in Weight Loss and Overall Health

Exercise breaks down into two main types: cardiovascular (aerobic) exercise and strength (resistance) training. Both have different but complementary jobs in helping with obesity.

Cardiovascular Exercises & HIIT

This includes activities that get your heart pumping and make you breathe harder, like walking briskly, running, swimming, or biking. It’s really good at burning calories and helping create that calorie gap you need for losing weight.

Beyond just helping with weight, cardiovascular exercise really improves your heart health, how well your lungs work, and your blood flow. When you do aerobic activity regularly, you’ll have more energy, better fitness, and feel stronger overall.

It also lowers your risk of developing chronic problems like heart disease, stroke, type 2 diabetes, and some cancers. Plus, cardio exercise can boost your mood, cut down on stress, and help you sleep better. It’s super important for keeping weight off long-term too.

If you’re short on time, high-intensity interval training (HIIT) might work for you. This is where you do short bursts of really hard exercise followed by rest periods. It can give you similar benefits to regular aerobic workouts but takes less time.

Strength Training for Muscle Building

You might hear this called resistance training or weight training. It involves exercises that work your muscles using weights, resistance bands, or just your body weight. While cardio is great at burning calories during your workout, strength training helps with weight management by building and maintaining muscle.

Your muscles burn more calories than fat does, even when you’re just sitting around. This means having more muscle helps your body burn more calories all day long, boosting your metabolism. Strength training also helps reduce your overall body fat percentage and makes you stronger.

It’s also great for building strong bones and lowering your risk of osteoporosis. It can make everyday activities easier and might reduce your risk of metabolic syndrome, type 2 diabetes, and heart disease.

Strength training works your fast-twitch muscle fibers, which improves your muscle strength and size. This increases how many calories your body can burn even when you’re not exercising.

Expert Advice on Exercise for Weight Loss

Organizations like the American College of Sports Medicine (ACSM) and the World Health Organization (WHO) provide guidelines for physical activity for weight loss and maintenance.

For good health, you should aim for at least 150 minutes every week of moderate-intensity aerobic activity. If you want to lose more weight and keep it off, you might need more, like 200-300 minutes or more each week.

You should also do muscle-strengthening activities that work all your major muscle groups at least twice a week. During moderate-intensity exercise, you should be able to talk but not sing.

If you’ve lost weight already, keeping it off might require even more activity, with some studies suggesting 60-90 minutes of moderate activity daily. The ACSM’s updated guidelines in 2024 stress that all types of physical activity are good for you, and exercise plans should be tailored to your individual needs and goals, looking at more than just your weight.

To successfully make physical activity part of your weight management plan, it’s best to start slow and gradually do more.

• Picking activities you actually enjoy is key to sticking with it long-term.
• Finding ways to move more in your daily life, like taking the stairs or walking during breaks, can also add to your overall activity.
• You can break up exercise into shorter sessions throughout the day if one long workout isn’t possible.
• If your joints hurt, try low-impact options like swimming, water aerobics, or using an elliptical machine for effective workouts with less strain on your body.
• Walking is particularly accessible and beneficial for many people, especially if you’re new to physical activity.